User manual
Table Of Contents
- System specifications
- System utilities
- Replacing notebook components
- Preventing static electricity discharge
- Preparing the work space
- Required tools
- Preparing the notebook
- Removing the battery
- Removing the bay cover
- Adding or replacing memory modules
- Replacing the wireless card
- Replacing the hard drive
- Replacing the optical drive
- Replacing the keyboard cover
- Replacing the multimedia board
- Replacing the keyboard
- Replacing the LCD panel assembly
- Replacing the palm rest
- Replacing the speakers
- Replacing the touchpad board
- Replacing the modem board
- Replacing the USB board
- Replacing the Bluetooth module
- Replacing the system board
- Replacing the cooling assembly
- Replacing the processor
- Replacing the LCD front panel
- Replacing the webcam
- Replacing the LCD
- Replacing the LCD panel hinge brackets
- Replacing the power button board
- Replacing the Kensington lock cap
- Replacing the microphone
- Replacing the antennas
- Replacing the LCD assembly lid
- Troubleshooting
- Connector locations
- FRU (Field-Replaceable Unit) list
- Test compatible components
- Online support information

CHAPTER 4: Troubleshooting
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D2h Unknown interrupt
E0h Initialize the chipset
E1h Initialize the bridge
E2h Initialize the CPU
E3h Initialize the system timer
E4h Initialize system I/O
E5h Check force recovery boot
E6h Checksum BIOS ROM
E7h Go to BIOS
E8h Set Huge Segment
E9h Initialize Multi Processor
EAh Initialize OEM special code
EBh Initialize PIC and DMA
ECh Initialize Memory type
EDh Initialize Memory size
EEh Shadow Boot Block
EFh System memory test
F0h Initialize interrupt vectors
F1h Initialize Run Time Clock
F2h Initialize video
F3h Initialize System Management Mode
F4h 1 Output one beep before boot
F5h Boot to Mini DOS
F6h Clear Huge Segment
F7h Boot to Full DOS
Code Beeps POST Routine Description